BTBAI 2x CGA-DU07 Battery for CGADU07 CGA-DU06 CGA-DU07A CGA-DU07A/1B CGA-DU07E/1B CGA-DU12 CGA-DU14 CGA-DU21 DU21A CGR-DU06 CGR-DU07 VW-VBD070 VW-VBD140 VW-VBD210 NV-MX500A NV-MX500A k1a